CN1134628C - Method and apparatus for cooling power electronic device of frequency conversion driving equipment - Google Patents

Method and apparatus for cooling power electronic device of frequency conversion driving equipment Download PDF

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Publication number
CN1134628C
CN1134628C CNB001043145A CN00104314A CN1134628C CN 1134628 C CN1134628 C CN 1134628C CN B001043145 A CNB001043145 A CN B001043145A CN 00104314 A CN00104314 A CN 00104314A CN 1134628 C CN1134628 C CN 1134628C
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heat sink
temperature
refrigerant
cooling
control valve
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CNB001043145A
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Chinese (zh)
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CN1266978A (en
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P・A・利斯博阿拉莫斯
迈克尔·A·斯塔克
钡滤沟滤魅
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开利公司
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B5/00Compression machines, plant, or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02Compression machines, plant, or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06Cooling; Heating; Prevention of freezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B31/00Compressor arrangements
    • F25B31/006Compressor arrangements cooling of compressor or motor

Abstract

本发明涉及一种用以冷却变频驱动装置动力电子器件的方法和实施该方法的设备。 The present invention relates to a method for cooling power electronics inverter drive apparatus and method of the embodiment. 该变频驱动装置用于一制冷系统压缩机的电动机。 The variable frequency drive motor for a compressor of a refrigeration system. 将方法是将冷却变频驱动装置的动力电子器件安装成与一散热片具有热传导关系,使从制冷冷凝器输出的制冷剂与散热片具有热传导关系,将从冷凝器输出的制冷剂加以膨胀,使其压力下降至一低压,以使散热片温度保持在需要的范围之内。 The method of cooling the power electronics of a variable frequency drive mounted with a heat sink in heat transfer relation with the heat transfer relation with the refrigerant from the condenser to the heat sink cooling output, will be expanded refrigerant condenser output, so that a low pressure to a pressure drop, so that the heat sink temperature is maintained within the required range. 为实施该方法,该电子器件安装在一散热片上,来自该系统冷凝器的制冷剂借助于一流通管路通过该散热片,并且返回到该系统的低压侧。 For the implementation of the method, the electronic devices mounted on a heat sink, the refrigerant from the system condenser by means of a flow conduit through the fins, and returns to the low pressure side of the system. 一控制阀安装在流通管中,它调节通过管路的制冷剂,使散热片冷却,以将该电子器件的温度保持在需要的范围之内。 A control valve installed in the circulation pipe, which is adjusted by the refrigerant lines, the heat sink is cooled to maintain the temperature of the electronics within the required range.

Description

用以冷却变频驱动的装置的动力电子器件的方法和设备 Method and apparatus for cooling the power electronics of a variable frequency drive means

本发明涉及用以冷却与制冷压缩机相关的变频驱动装置的电子器件的方法和设备。 The present invention relates to a variable frequency drive for a refrigerant compressor with cooling methods and apparatus related to an electronic device.

使用在许多制冷系统中的压缩机通常需要对压缩机的电动机速度进行严密的控制,以在变化的负荷条件下将该系统保持在需要的限定范围内。 Used in many refrigeration systems a compressor often requires strict control of the motor speed of the compressor in order to maintain the system within the desired range defined in the load conditions change. 因此压缩机装配有变频驱动装置(VFD),变频驱动装置包含有绝缘栅双极晶体管形式的动力电子器件,该电子器件可能会过热,因此需要冷却。 Thus the compressor is equipped with a variable frequency drive (the VFD), a variable frequency drive comprises a power electronic devices have the form of insulated gate bipolar transistors, the electronic device may be overheated, and therefore require cooling. 给这些电子器件提供冷却、通常所能接受的方法是将晶体管安装在一散热片上,并且通过在散热片内部或周围循环散热剂,从而将热量从散热片上带走。 To provide cooling of these electronic devices, it is generally acceptable methods transistor mounted on a heat sink, and the heat sink through or around the circulating cooling agent, so that the heat from the heat sink. 散热片和冷却系统的性能成了决定VFD容量的主要因素。 Performance heat sink and cooling system has become the main factor VFD capacity.

散热片通常是相对较大的块状材料的形式,它具有很好的热传导和热惯性性能。 Fins usually in the form of relatively large bulk material, having good thermal conduction properties and thermal inertia. 一流通通道形成在块状物中,散热剂通过该通道循环,它吸收了过多的热量且将其带出系统。 A flow passage formed in the mass, cooling agent circulating through the passage, it absorbs the excess heat out of the system and its.

用水来冷却VFD散热片已被证明是冷却VFD晶体管的一种满意的方法,但是,水冷却难以控制,并且散热片温度有时会超出需要的运行范围。 VFD water cooled fins has proved to be a satisfactory method of cooling the VFD transistors, however, water cooling is difficult to control, and the heat sink temperature may exceed desired operating range. 这又会产生VFD电子器件的过热和阻碍制冷系统的运作。 This will overheat VFD electronics and hinder the operation of the refrigeration system. 此外,水冷却回路需要额外的水控制构件,例如水泵、热交换器及需要将热量从晶体管传送到外部环境的此类装置。 In addition, the water cooling circuit requires additional water control means, for example, pumps, heat exchangers and heat needs to be transferred from the transistor to the external environment such devices. 此类冷却装置一般较为复杂、成本高且需要很大的安装空间。 Such a cooling device is generally more complex, costly and requires a large installation space.

因此本发明的一个基本目的是改进制冷系统,提供一种用以冷却变频驱动装置的动力电子器件的方法和设备。 Thus a basic object of the present invention to improve refrigeration systems, provide a method and apparatus for cooling the power electronics of a variable frequency drive.

上述目的在方法方面的解决方案在于,这种一种冷却变频驱动装置(VFD)的动力电子器件的方法,其中所述变频驱动装置用以控制一制冷系统中的压缩机的电动机,其特征在于:将VFD的动力电子器件安装成与一散热片具有热传导关系,使从制冷冷凝器输出的制冷剂与散热片具有热传导关系,将从冷凝器输出的制冷剂加以膨胀,使其压力下降至一低压,以使散热片温度保持在需要的范围之内。 Solution The above object is that the method aspect, a method of cooling such a variable frequency drive (VFD) power the electronic device, wherein the motor for controlling a refrigeration system of the inverter drive the compressor, wherein : the power of the VFD electronics and a heat sink mounted in heat transfer relation with the heat transfer relation with the refrigerant from the condenser to the heat sink cooling output, will be expanded refrigerant condenser output, its pressure drops to a a low pressure, so that the heat sink temperature is maintained within the required range.

上述目的在设备方面的技术方案在于这种用于变频驱动装置的动力电子器件的冷却设备,其中所述变频驱动装置用以控制一制冷系统中的压缩机的电动机,其特征在于:一制冷系统,该系统还具有通过制冷管路串联连接的一压缩机、一冷凝器和一蒸发器及位于其中一个所述制冷管路中来调节在冷凝器和蒸发器之间流动的制冷剂的一膨胀器,连接在压缩机的电动机上的一变频驱动装置,所述驱动装置包含有需要冷却的动力电子器件,使制冷剂的一部分从系统冷凝器分流至压缩机入口的一个回路,安装在所述回路中一变频驱动蒸发器,所述蒸发器与所述变频驱动装置的电子器件存在热传导关系;所述回路中的一控制阀,所述控制阀用以膨胀制冷剂,使其通过所述回路从系统冷凝器处的压力达到压缩机入口处的压力,由此冷却所述电子器件。 Technical Solution The above object is characterized in that the device for cooling the power electronics inverter device driving apparatus, wherein a refrigeration system for controlling the motor of the compressor inverter drive, characterized in that: a cooling system the system further includes a compressor connected in series by a refrigerant circuit, a condenser and an evaporator and wherein a said cooling line located in adjusting the refrigerant between the condenser and the evaporator of flowing an expansion device, a variable frequency drive means connected to the compressor motor, said drive means comprises a power electronics that require cooling, so that part of the refrigerant from the system condenser to a shunt circuit compressor inlet, is mounted in the a variable frequency drive circuit evaporator, said evaporator is present in heat transfer relation with the electronics of the variable frequency drive means; a control valve in the circuit, the control valve for expanding the refrigerant, passed through the loop to a pressure from the compressor inlet pressure at the condenser system, thereby cooling the electronic device.

为了更好地理解本发明的这些和其他目的,结合附图,参见以下本发明的详尽描述,在附图中:图1是结合本发明的一制冷系统的示意图;图2是涉及本发明又一实施例的与图1类似的示意图;图3仍然是涉及本发明又一实施例的示意图;图4是本发明另一实施例的示意图;以及图5是适于使用在本发明实践中的一温度膨胀控制阀的放大后的侧视图。 For a better understanding of these and other objects of the present invention, in conjunction with the accompanying drawings, see the following detailed description of the present invention, in which: FIG. 1 is a schematic view of a refrigeration system in conjunction with the present invention; FIG. 2 of the present invention is further directed to an embodiment similar to schematic diagram 1; FIG. 3 relates to a schematic view of still yet another embodiment of the present invention; FIG. 4 is a schematic diagram of another embodiment of the present invention; and Figure 5 is suitable for use in the practice of the present invention an enlarged side view of a temperature expansion control valve.

首先参见图1,它简要示出了以10标示的一制冷系统,该系统利用了卡诺制冷循环,该循环具有可操作地连接到各种系统构件上的一系列制冷管路12。 Referring first to Figure 1, which schematically shows a refrigeration system 10 in a marked, the system utilizes the Carnot refrigeration cycle that has a series of operatively connected to the refrigerant line 12 of the various system components. 该系统还具有通过一制冷管路12连接到一压缩机15出口侧的一冷凝器13。 The system also has a connection through a refrigerant circuit 12-1 outlet side of the compressor 15 a condenser 13. 而该冷凝器又与一蒸发器17相串联,蒸发器17的出口借助于一制冷管路连接到该压缩机的入口侧,以完成该系统的回路。 The condenser and an evaporator 17 in turn connected in series, the outlet of the evaporator 17 by means of a cooling line is connected to the inlet side of the compressor to complete the system loop. 一膨胀器20安装在冷凝器和蒸发器之间的制冷管路上,它将从冷凝器出来的高压制冷剂通过膨胀而使其成为低温低压。 Expander 20 is mounted on a refrigerant line between the condenser and the evaporator, high-pressure refrigerant from the condenser it out by making temperature low-pressure expansion. 膨胀器可以是此类装置中的任何一种,例如本领域中众所周知和使用的节流阀或毛细管。 The expanders may be any one of such devices, such as known in the art and the use of a throttle valve or a capillary tube.

需要冷却的物质流经与低温制冷剂有热传递关系的蒸发器。 Requires cooling substance temperature refrigerant flows through the evaporator with a heat transfer relationship. 在冷却过程中吸收了热量的制冷剂在一相当低的压力下被蒸发,而后制冷剂蒸汽被传送到压缩机入口,以通过该系统再次循环。 During cooling the absorption heat of the refrigerant is evaporated at a relatively low pressure, the refrigerant vapor is then conveyed to the inlet of the compressor to cycle through the system again.

该压缩机的电动机装配有控制发动机速度的变频驱动装置(VFD)25。 The motor compressor assembly has a variable frequency drive (VFD) 25 controls the engine speed. 该装置以虚线示出在图1中。 The apparatus shown in dotted lines in FIG. 在该领域中众所周知,VFD一般容纳有需要冷却的动力电子器件,以使驱动装置能在该系统运行范围中的最优条件下运作。 Well known in the art, the VFD typically containing power electronics that require cooling, so that the driving means can operate under optimal conditions in the operating range of the system. 在实践中,需要冷却的电子器件通常是图中以27简要示出的绝缘栅双极晶体管(IGBT)。 In practice, the electronic components requiring cooling are generally insulated gate bipolar FIG transistor (IGBT) in 27 schematically shown. 如上所述,迄今该电子器件是通过将其与一散热片放置成热传递关系和循环冷却水进行冷却的。 As described above, the electronic device is a date by placing it to a heat sink in heat transfer relationship and circulating cooling water for cooling. 此类冷却系统相当复杂,需要较大的空间,且难以控制。 Such cooling systems are quite complex and require a large space, and difficult to control.

如图1所示,VFD的电子器件直接安装在一散热片30上,散热片30形成了在此所说的VFD蒸发器29的一部分。 As shown in FIG. 1, the VFD electronics mounted directly on a heat sink 30, the fins 30 herein forms part of said VFD evaporator 29. 该散热片是用具有较高热传导系数的块状材料构造,因此该电子器件所产生的热能被快速传递走且吸入到散热片中。 The fin is constructed of a material having a higher thermal conductivity coefficient block, therefore the electronic device the heat generated is transferred away quickly and drawn into fins. 一内部流通通道32安装该块状材料中。 An internal flow passage 32 is mounted in the bulk material. 该通道沿一弯曲路径通过该块状材料,以提供通道和散热片之间最大的接触面。 The channel along a curved path through which the bulk material to provide the maximum contact surface between the channels and fins. 在实践中,该流通通道可以是嵌入散热片中的一段铜管或者类似物,并且它具有一入口33和一出口34。 In practice, the communication channel may be a brass or the like embedded in some of the fins, and having an inlet 33 and an outlet 34.

内部流通通道的入口33通过一供给管36连接在该系统冷凝器的制冷剂出口35上。 An inlet flow passage 33 through the interior of the refrigerant outlet is connected to the condenser system 36 on a supply pipe 35. 而该流通通道的出口通过一排放管39连接在压缩机入口上。 And the outlet flow passage through a discharge pipe 39 connected to the compressor inlet. 以40标示的一控制阀容纳在供给管中,通过控制阀,制冷剂从较高的冷凝器压力调节到一较低的压力,由此给散热片提供低温的制冷剂来冷却该电子器件。 Indicated at 40 a control valve accommodated in the supply tube, through the control valve, regulating the refrigerant from the higher condenser pressure to a lower pressure, thereby providing a heat sink temperature refrigerant to cool the electronic device.

控制阀40的细节示出在图5中。 Details of the control valve 40 shown in FIG. 5. 该阀具有嵌入散热片中的一探测头42,探测头42尽可能地接近该电子器件,以最佳地测定运行温度。 The valve has an embedded fins probe 42, the probe 42 to the electronic device as close as possible to the optimal operating temperature measured. 该阀可以是能对探测头所感应的温度作出响应的一温控阀,或者是能对散热片中温度变化所导致的在探测头处的压力变化作出响应的一温度膨胀阀。 A temperature responsive valve which may be able to respond to the probe temperature sensed by a temperature control valve, or on the fins can be varied due to temperature change in pressure at the expansion valve probe. 在本实施例中,该阀是一个温度膨胀阀,它具有安装在壳体44内部的一横隔膜43。 In the present embodiment, the valve is a thermal expansion valve, which has mounted inside the housing 44 a diaphragm 43. 依据散热片的温度,球状测头的压力有所变化,随之设定了横隔膜的上侧腔体45上的压力。 Based on the temperature of the heat sink, the spherical probe pressure change, along with the pressure set on the upper side chamber 45 of the diaphragm body. 横隔膜下侧腔体46上的压力由一预设的可调节弹簧47和一均压端口49来决定,均压端口49在腔体的低压侧和阀门体50的低压侧之间延伸。 Side pressure chamber below the diaphragm 46 by a preset adjustable spring 47 and a pressure equalizing port 49 is determined, the pressure equalizing port 49 and the low pressure side extending valve body cavity 50 between the low pressure side. 横过该阀的横隔膜的压力平衡使阀门体定位在阀通道中,由此控制提供给散热片的冷却量。 Across the diaphragm of the pressure balance valve so that the valve body is positioned in the valve passage, thereby controlling the amount of cooling provided to the heat sink. 较佳地,将散热片的温度控制在90°F至140°F的范围内。 Preferably, the heat sink temperature is controlled in the range 90 ° F to 140 ° F in.

从以上公开可以看出,带有内部流通通道的散热片可作为用于VFD的制冷剂蒸发器,通过利用制冷循环给电子器件提供严密控制的冷却,以从VFD中除去热量。 From the above disclosure, the heat sink with an internal flow passage may be used as a refrigerant evaporator for the VFD to provide closely controlled cooling to the electronic device by using a cooling cycle to remove heat from the VFD. 可以看出,传递到VFD蒸发器中制冷剂的热量被该系统的压缩机传导至该系统的冷凝器,在那里,热量被排放到冷凝器冷却回路中。 As can be seen, the heat transferred to the refrigerant in the VFD evaporator is conducted to the compressor of the system is the system condenser, where heat is rejected into the condenser cooling loop.

图2描述的是本发明的另一实施例,其中相同的构件用图1中相同的标号来标示。 FIG 2 is described another embodiment of the present invention, the same reference numerals used in Figure 1 wherein the same members are denoted. 在本发明的该实施例中,VFD蒸发器的排放管39连接到系统蒸发器17中,且与流经该蒸发器进行处理的制冷剂结合在一起。 In this embodiment of the present invention, the VFD evaporator is connected into the exhaust system pipe 39 of the evaporator 17 and the refrigerant flowing through the process integrated with the evaporator. 所示的阀探测头42安装在VFD蒸发器的排放管上,而不是嵌入在散热片中。 Valve probe head shown mounted on the exhaust pipe 42 VFD evaporator rather than embedded in the fins. 该探测头将温度信息反馈给控制阀40,而控制阀40根据所感应的制冷剂温度来设定阀门体的位置,从而将散热片的温度保持在冷却电子器件需要的运行范围之内。 The probe temperature information back to the control valve 40 and the control valve 40 to set the position of the valve body in accordance with the sensed temperature of the refrigerant, thereby maintaining the temperature of the heat sink in the operating range of the cooling needs of electronic devices.

现参见图3,所示的仍然是本发明的另一实施例,其中相同的标号再次用来标示与以上相同的构件。 Referring now to Figure 3, shown is still another embodiment of the present invention, wherein like reference numerals are again used to designate the same components as above. 在本发明的该另一实施例中,控制阀40安装在VFD蒸发器29的排放管中,在此情况下,控制阀40直接连接在压缩机入口处。 In the further embodiment of the present invention, the control valve 40 is mounted in the VFD evaporator exhaust tube 29, in this case, the control valve 40 is directly connected to the compressor inlet. 但是,如上所述,排放管也可以直接连接在该系统上。 However, as described above, the discharge tube may be connected directly to the system. 温度探测头42嵌入VFD蒸发器的散热片30中,且给控制阀提供相关的温度信息。 Temperature probe 42 is embedded VFD evaporator fins 30, and provide temperature information to the control valve. 一般从系统冷凝器出来的制冷剂的温度低于140°F,因此分流入VFD蒸发器的制冷剂很好地处在冷却电子器件所需的散热片温度范围之内。 Usually the temperature of the refrigerant out of the system condenser is below 140 ° F, so the refrigerant flows into the VFD evaporator points well within the electronics required for cooling the heat sink temperature range.

图4所示的仍然是本发明的另一实施例,其中相同的标号再次用来标示与以上相同的构件。 FIG 4 is still another embodiment of the present invention, wherein like reference numerals are again used to designate the same components as above. 在本发明的该实施例中,从系统冷凝器出来的制冷剂的一部分通过温控阀40膨胀进入VFD蒸发器29中。 In this embodiment of the present invention, part of the refrigerant out of the condenser into the system in the VFD evaporator 29 through a temperature control valve 40 is expanded. 温度探测头42还是嵌在散热片30中,且给微处理器50相关温度信息,微处理器50编有处理数据的程序,且给控制阀发出控制信号。 Temperature probe 42 is embedded in the heat sink 30, and temperature information related to the microprocessor 50, the microprocessor 50 is programmed with a program to process data, and sends a control signal to the control valve. 其他系统相关信息也可以送给微处理器,再经微处理器处理后达到需要的阀设定值,以在系统总体性能消耗最小的条件下给电子器件提供冷却。 Other system related information can also be sent to the microprocessor, and then to achieve the desired valve setting after processed by the microprocessor to the minimum consumption condition in the overall system performance electronic device to provide cooling.

从以上的公开可证实,本发明是对制冷压缩机的变频驱动装置的动力电子器件加以冷却的一种简单有效的解决办法。 Confirmed from the above disclosure, the present invention is to be simple and effective for cooling of solutions to the power electronics of the variable frequency drive refrigerant compressor apparatus. 本系统消除了传统的水冷却系统的复杂性,并且易于安装,且更能够控制冷却过程。 This system eliminates the complexities of traditional water cooling systems, and easy to install, and more able to control the cooling process. 因为其有效性,本系统允许比已有技术中当前使用在一制冷系统的压缩机驱动装置中的那些器件容量更大的电子器件的更为广泛的应用。 Because of its effectiveness, the present system allows wider range of applications of an electronic device that larger capacity compressor drive device of a refrigeration system is currently used than in the prior art.

Claims (16)

1.一种冷却变频驱动装置(VFD)的动力电子器件的方法,所述变频驱动装置用以控制一制冷系统中的压缩机的电动机,其特征在于:将VFD的动力电子器件安装成与一散热片具有热传导关系,使从制冷冷凝器输出的制冷剂与散热片具有热传导关系,将从冷凝器输出的制冷剂加以膨胀,使其压力下降至一低压,以使散热片温度保持在需要的范围之内。 A method for cooling a variable frequency drive (VFD) of the electronic power device, the variable frequency drive apparatus for controlling a motor compressor in a refrigeration system, characterized by: mounting a power electronic device and into a VFD fins in heat transfer relation with the heat conducting relationship with the refrigerant outputted from the condenser to be expanded refrigerant from the condenser to the heat sink cooling output, its pressure drops to a low pressure, so that the heat sink temperature is maintained at desired within range.
2.如权利要求1所述的方法,其特征在于还包括以下步骤:使从所述散热片出来的制冷剂进入到系统压缩机的入口中。 2. The method according to claim 1, characterized by further comprising the steps of: from the heat sink, the refrigerant entering the inlet system of the compressor.
3.如权利要求1所述的方法,其特征在于还包括以下步骤:使从所述散热片出来的制冷剂进入到系统蒸发器中。 The method according to claim 1, characterized by further comprising the steps of: from the heat sink, the refrigerant enters the evaporator system.
4.如权利要求1所述的方法,其特征在于还包括以下步骤:在使所述制冷剂与所述散热片具有热传导关系之前,使所述制冷剂通过一控制阀,从而使其膨胀。 4. The method according to claim 1, characterized by further comprising the step of: prior to the refrigerant and the heat sink having a thermally conductive relationship, the refrigerant through a control valve, so that it expands.
5.如权利要求4所述的方法,其特征在于还包括以下步骤:感应所述散热片的温度,且依据所述感应到的温度来定位所述控制阀。 5. The method according to claim 4, characterized by further comprising the step of: sensing the temperature of said heat sink, and according to the sensed temperature of positioning the control valve.
6.如权利要求4所述的方法,其特征在于还包括以下步骤:感应所述散热片的温度,将感应到的温度数据提供给一微处理器进行处理,所述微处理器给所述控制阀提供一输出信号,以将所述散热片的温度保持在需要的范围之内。 6. The method according to claim 4, characterized by further comprising the step of: sensing the temperature of the heat sink, the sensed temperature data to a microprocessor for processing, said microprocessor to said the control valve provides an output signal to the heat sink temperature is maintained within the required range.
7.一种用于实施如权利要求1所述方法的冷却设备,所述变频驱动装置用以控制一制冷系统中的压缩机的电动机,其特征在于:一制冷系统,该系统还具有通过制冷管路串联连接的一压缩机、一冷凝器和一蒸发器及位于其中一个所述制冷管路中来调节在冷凝器和蒸发器之间流动的制冷剂的一膨胀器,连接在压缩机的电动机上的一变频驱动装置,所述驱动装置包含有需要冷却的动力电子器件,使制冷剂的一部分从系统冷凝器分流至压缩机入口的一个回路,安装在所述回路中一变频驱动蒸发器,所述蒸发器与所述变频驱动装置的电子器件存在热传导关系;所述回路中的一控制阀,所述控制阀用以膨胀制冷剂,使其通过所述回路从系统冷凝器处的压力达到压缩机入口处的压力,由此冷却所述电子器件。 7. A cooling apparatus as recited in embodiment of the method of claim 1, the variable frequency motor drive means for controlling a refrigeration system compressor comprising: a refrigeration system having a refrigerant passing through further a compressor conduit connected in series, a condenser and an evaporator and wherein a said cooling line located in an expander to adjust the refrigerant flow between the condenser and evaporator connected to the compressor a variable frequency drive on the motor, the drive means comprises a power electronics that require cooling, so that part of the refrigerant from the system condenser to a shunt circuit compressor inlet, is mounted in the circuit a variable frequency drive evaporator , the presence of the electronic device with the variable frequency drive evaporator means heat-conducting relationship; a control valve in the circuit, the control valve for expanding the refrigerant, passed through the circuit from the system condenser pressure at reached the compressor inlet pressure, thereby cooling the electronic device.
8.如权利要求7所述的设备,其特征在于,所述变频驱动蒸发器具有一散热片,所述散热片用具有较高热传导系数的块状材料制成,所述流通通道穿过所述块状材料,其中,所述动力电子器件与所述散热片安装成具有热传导关系。 8. The apparatus according to claim 7, wherein said variable frequency drive evaporator includes a heat sink, the heat dissipation sheet bulk material having high thermal conductivity is made, the flow through the passageway bulk material, wherein the power electronic device and the heat sink mounted to a heat conducting relationship.
9.如权利要求7所述的设备,其特征在于,还具有一温度探测头,所述探测头给所述阀提供相关的散热片温度信息,由此所述阀响应所感应到的温度而打开或闭合。 9. The apparatus according to claim 7, wherein, further comprising a temperature probe, the probe of the valve to provide heat sink temperature information, whereby the valve in response to the sensed temperature opened or closed.
10.如权利要求9所述的设备,其特征在于,所述温度探测头嵌响应在所述散热片中。 10. The apparatus according to claim 9, wherein, in response to said temperature probe is embedded in the fins.
11.如权利要求9所述的设备,其特征在于,所述探测头安装在所述流通回路中的散热片的下游。 11. The apparatus according to claim 9, characterized in that the head is mounted downstream of the fins in the flow of the detection circuit.
12.如权利要求8所述的设备,其特征在于,所述控制阀是一温度膨胀阀,并且还具有能依据散热片的温度给所述阀提供压力信息的一温度探测头。 12. The apparatus according to claim 8, wherein the control valve is a temperature expansion valve and further includes providing pressure information to the valve based on a temperature of the heat sink temperature probe.
13.如权利要求12所述的设备,其特征在于,所述探测头嵌在所述散热片中。 13. The apparatus of claim 12, wherein said probe is embedded in the fins.
14.如权利要求8所述的设备,其特征在于,所述控制阀位于所述散热片的上游侧。 14. The apparatus according to claim 8, characterized in that the control valve is located upstream side of the heat sink.
15.如权利要求8所述的设备,其特征在于,所述控制阀位于所述散热片的下游侧。 15. The apparatus according to claim 8, characterized in that the control valve is located downstream side of the heat sink.
16.如权利要求9所述的设备,其特征在于,还具有一微处理器,该微处理器被设置为可接受所述探测头的输入数据且给所述阀提供一输出控制信号,以将散热片温度保持在需要的温度范围之内。 16. The apparatus according to claim 9, characterized by further having a microprocessor is arranged to probe the acceptable input data and provides an output signal to the control valve to the heat sink temperature is maintained within a desired temperature range.
CNB001043145A 1999-03-15 2000-03-15 Method and apparatus for cooling power electronic device of frequency conversion driving equipment CN1134628C (en)

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EP1037001A3 (en) 2000-10-04
EP1037001A2 (en) 2000-09-20
TWM267436U (en) 2005-06-11
DE60013666D1 (en) 2004-10-21
AU2228300A (en) 2000-09-21
KR20000062857A (en) 2000-10-25
AU766412B2 (en) 2003-10-16
EP1037001B1 (en) 2004-09-15
SG84572A1 (en) 2001-11-20
DE60013666T2 (en) 2005-09-29
ES2223388T3 (en) 2005-03-01
US6116040A (en) 2000-09-12
JP2000283569A (en) 2000-10-13
CN1266978A (en) 2000-09-20

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